Amazon.com: Seagate BarraCuda 500GB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 32MB Cache for Computer Desktop PC (ST500DM009) : Electronics
Amazon.com: Seagate Barracuda 7200.12 500 GB 7200RPM SATA 6Gb/s with NCQ 16MB Cache 3.5 Inch Internal Bare Drive ST3500413AS : Electronics
SEAGATE BARRACUDA LP 500GB 5.9K 16MB SATA II 3.5'' ST3500412AS | eBay
Hard Drive Seagate barracuda LP ST3500412AS 500GB 5900U/Min 16MB SATA II 3.5 " | eBay